<template>
  <view>
    <!-- 使用自定义搜索组件 -->
    <view class="search-box">
      <my-search @myclick="gotoSearch"></my-search>
    </view>
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,i) in swiperList" :key="i">
        <navigator class="swiper-item" :url="'/subpkg/goods_detail/goods_detail?goods_id =' + item.goods_id">
          <img :src="item.image_src" alt="" />
        </navigator>
      </swiper-item>
    </swiper>

    <!-- 分类导航区域 -->
    <view class="nav-list">
      <view class="nav-item" v-for="(item,index) in navList" :key="index" @click="navClickHandler(item)">
        <img class="nav-img" :src="item.image_src" />
      </view>
    </view>

    <!-- 展示楼层区域-->
    <view class="floor-list">
      <!-- 每一楼层的item项 -->
      <view class="floor-item" v-for="(item,i) in floorList" :key="i">
        <!-- 楼层的标题 -->
        <img :src="item.floor_title.image_src" class="floor-title" />
        <!-- 楼层的图片区域 -->
        <view class="floor-img-box">
          <!-- 左侧大图片区域 -->
          <navigator class="left-img-box" :url="item.product_list[0].url">
            <image class="left-img" :src="item.product_list[0].image_src" mode="widthFix"></image>
          </navigator>
          <!-- 右侧的4个小图片区域 -->
          <view class="right-img-box">
            <navigator :url="item2.url" class="right-img-item" v-for="(item2, index) in item.product_list" :key="index"
              v-show="index !== 0">
              <image :src="item2.image_src" mode="widthFix" :style="{width:item2.image_width + 'rpx'}"></image>
            </navigator>
          </view>
        </view>
      </view>
    </view>
  </view>
</template>

<script>
  import store from '../../store/store.js'
  export default {
    data() {
      return {
        // 存储轮播图数据
        swiperList: [],
        // 导航的数据列表
        navList: [],
        // 楼层的数据列表
        floorList: []
      };
    },
    computed: {
      total() {
        return store.getters.total
      }
    },
    // 当页面挂载的时候调用方法获取轮播图数据
    onLoad() {
      this.getSwiperList()
      this.getNavList()
      this.getFloorList()
    },
    onShow(){
      // 在显示cart页面的时候显示徽标
      this.setBadge();
    },
    methods: {
      // 获取轮播图数据方法
      async getSwiperList() {
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/home/swiperdata')
        console.log(res);
        // 请求失败
        if (res.meta.status !== 200) return uni.$showMsg()
        // 请求成功
        this.swiperList = res.message
      },
      // 获取导航数据方法
      async getNavList() {
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/home/catitems')
        console.log(res);
        if (res.meta.status !== 200) return uni.$showMsg()
        this.navList = res.message
      },
      // 导航跳转的方法
      navClickHandler(item) {
        // 判断导航
        if (item.name === '分类') {
          uni.switchTab({
            url: '/pages/cate/cate'
          })
        }
      },
      // 获取楼层数据的方法
      async getFloorList() {
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/home/floordata')
        console.log(res);
        if (res.meta.status !== 200) return uni.$showMsg()
        // 通过双层forEach循环,处理URL地址
        res.message.forEach(floor => {
          floor.product_list.forEach(prop => {
            prop.url = '/subpkg/goods_list/goods_list?' + prop.navigator_url.split('?')[1]
          })
        })
        this.floorList = res.message
      },
      // 跳转到搜索页面
      gotoSearch() {
        uni.navigateTo({
          url: '/subpkg/search/search'
        })
      },
      // 设置徽标的方法
      setBadge(){
        uni.setTabBarBadge({
          index:2,//tabbar索引值
          text:this.total + ''//'转为字符串'
        })
      }
    }
  }
</script>

<style lang="scss">
  swiper {
    height: 330rpx;

    .swiper-item,
    image {
      width: 100%;
      height: 100%;
    }
  }

  .nav-list {
    display: flex;
    justify-content: space-around;
    margin: 10px 0;

    .nav-img {
      width: 128rpx;
      height: 140rpx;
    }
  }

  .floor-title {
    width: 100%;
    height: 60rpx;
  }

  .left-img {
    width: 233rpx;
  }

  .floor-img-box {
    display: flex;
    margin-left: 10rpx;

    .right-img-box {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-around;
    }
  }

  .search-box {
    position: sticky;
    top: 0;
    z-index: 999;
  }
</style>